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Arganda, E. and Arqueros Martínez, Fernando and Blanco Ramos, Francisco and García Pinto, Diego and Minaya Flores, Ignacio Andrés and Ortiz Ramis, Montserrat and Rosado Vélez, Jaime and Vázquez Peñas, José Ramón (2012) A search for point sources of EeV neutrons. Astrophysical journal, 760 (2). ISSN 0004-637X
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Official URL: http://dx.doi.org/10.1088/0004-637X/760/2/148
Abstract
A thorough search of the sky exposed at the Pierre Auger Cosmic Ray Observatory reveals no statistically significant excess of events in any small solid angle that would be indicative of a flux of neutral particles from a discrete source. The search covers from -90 degrees to +15 degrees in declination using four different energy ranges above 1 EeV (10(18) eV). The method used in this search is more sensitive to neutrons than to photons. The upper limit on a neutron flux is derived for a dense grid of directions for each of the four energy ranges. These results constrain scenarios for the production of ultrahigh energy cosmic rays in the Galaxy.
Item Type: | Article |
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Additional Information: | © 2012. The American Astronomical Society. |
Uncontrolled Keywords: | Massive black-hole; Galactic-center; Cosmic-rays; Gamma-rays; Anisotropy; Astronomy |
Subjects: | Sciences > Physics > Nuclear physics |
ID Code: | 32722 |
Deposited On: | 30 Jul 2015 11:44 |
Last Modified: | 10 Dec 2018 14:58 |
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